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# SPDX-License-Identifier: GPL-3.0-or-later
# Copyright (C) 2016-2020 by Nathan Lovato, Daniel Oakey, Razvan Radulescu, and contributors
import bpy
class InfoProgressBar:
"""
Draws a progress bar in the info header area
"""
def __init__(self, progress_min=0, progress_max=100):
assert progress_min < progress_max
self.progress_min = progress_min
self.progress_max = progress_max
self._progress = bpy.props.FloatProperty(
default=self.progress_min,
min=self.progress_min,
max=self.progress_max,
subtype="PERCENTAGE",
)
self._visible = False
def update(self, context):
for area in context.screen.areas:
if area.type == "INFO":
area.tag_redraw()
def draw(self):
if self.progress >= self.progress_max:
self.visible = False
else:
self.layout.prop(self, "_progress", text="Progress", slider=True)
@property
def progress(self):
return self._progress
@progress.setter
def progress(self, value):
self._progress = min(max(self.progress_min, value), self.progress_max)
@property
def visible(self):
return self._visible
@visible.setter
def visible(self, value):
self._visible = value
if self._visible:
bpy.types.INFO_HT_header.append(self.draw)
bpy.app.handlers.scene_update_post.add(self.update)
else:
bpy.types.INFO_HT_header.remove(self.draw)
bpy.app.handlers.scene_update_post.remove(self.update)
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